how long had your lights been turned on for? Try mixing your kalk at max saturation. That is what i had to do to get my calcium up to over 400ppm. Now that it is there, it holds OK at the suggested mixture. Try Measuring your PH this afternoon, see what reading you get.
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Marty
50g reef, bubble king skimmer,20g sump,zeovit system, PM cal reactor
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